High expansion aggregate seal
AssigneeSchlumberger Technology Corporation
InventorsOliver Fry, Ilja Kivko, Alexander Rainy Brown, Robin Jonathan McGowan, Gareth Edward George Brown, Alexander Trushin
Life of this patent
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Abstract
A plugging tool includes a tool mandrel adapted to traverse an interior of a wellbore or well tubular. The mandrel has a seal section thereon, the seal section including longitudinally spaced apart extrusion barriers. The seal section includes a mechanism to urge the extrusion barriers toward each other. At least one elastomer sealing element is disposed between the extrusion barriers and arranged to radially expand when the extrusion barriers are urged toward each other.
Claims14
A plugging tool, comprising:
- a tool mandrel adapted to traverse an interior of a wellbore or well tubular having a seal section thereon, the seal section comprising longitudinally spaced apart extrusion barriers, the seal section comprising a mechanism to urge the extrusion barriers toward each other;
- and
- at least one elastomer sealing element disposed between the extrusion barriers and arranged to radially expand when the extrusion barriers are urged toward each other.
A method for plugging a wellbore or well tubular, comprising:
- moving a plugging tool to a selected position within the wellbore or well tubular, the plugging tool comprising a tool mandrel adapted to traverse an interior of a wellbore or well tubular having a seal section thereon, the seal section comprising longitudinally spaced apart extrusion barriers, the seal section comprising a mechanism to urge the extrusion barriers toward each other, and at least one elastomer sealing element disposed between the extrusion barriers and arranged to radially expand when the extrusion barriers are urged toward each other;
- and
- moving at least one or both extrusion barriers toward the other extrusion barrier to longitudinally compress and radially expand the at least one elastomer sealing element.
Dependencies are inferred from the claim text.